Comments on: "Sleep disturbances increase the risk of dementia: A systematic review and meta-analysis”

We read an article written by Shi et al. (1) with interest. The authors performed a systematic review and meta-analysis of 18 longitudinal studies to determine whether sleep disturbances (including insomnia, sleep disordered breathing, and other sleep problems) increase the risk of dementia. The meta-analysis was done by computing overall relative risk (RR) of incident dementia. The main findings from this study showed that sleep disturbances might increase risk of all-cause dementia, Alzheimer's disease, and vascular dementia.

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